Ventilator fob



Nov. 27, 1928.

' S. A. KINKEL VENTILATOR FOR WINDOW SA-SHES Y -Filed latch 3. 192.8Fig-' 7 7 Patented Nev. 27, 1928.

urnrs stares relai' *ori-"ICE,

' SAMUEL A. KINKEL, OF MINNEAPOLIS, MINNESOTA. .v

Y Y VVENTILA'IOR FOR 'VVINIDOW'4 SASI-IES.

Application mea March s, 192s. serial No. 258,827.

It is the object of this invention tov provide a novel and improvedventilator, which is particularly adapted for use on storm or windowsashes, and is of cheap and of simple construction and may be readilyinstalled.

To this end, the invention consists in the, novel parts and novelcombinations of partsv defined in the claims and described in the Yfollowing specification made in connection Y' is. substantiallyrectangular in shape, has

with the accompanying drawings, wherein like reference charactersreferto Vthe saine or similar parts throughout the various views, and,in which7 Fig. lois a view in side elevation of a window sash lookingoutwardly toward the sash and illustrating. an embodiment of the presentinvention applied to the sash; v

Fig.` 2 is a horizontal section taken on the line 2*-2 of Fig/1, as isindicated by the arrowsg' v Fig. 3 is a verticalsection taken on thelineY 3 8 cf Fig. 2, as is indicated by the. arrows7 `certain of theparts being illus-v 6 having glass panes .7 therein is illustrated andthelower end of the windowsash is adapted to abut the sill -8 of awindow frame. In accordance with the present invention, a plurality7ofdraft openings 9 are provided through the base .of the. window sashand these openings project downwardly slightly from.` the innerside ofthe window sash to provide a ready'drainage for water.:

A cam sleeve opening 10 isf-also bored lin the .base of the window sashfroml the inner side thereof outwardly to project almost through thesash. In accordance with the present invention', screening 11 is placedover `the openings 9 atl the inner `side of the window sash and anabutment plate 12 is secured tothe sash as byy nails rearwardly of thescreening 11. The abutment plate 12 openingstherethrough in alinenientwith the openings 9 and 10j andis'providedat its edges with a rearwardlyprojecting roll'12a forming, in effect, a rectangular frame5 the outeredges ofthe roll abutting the rear side of the window' frame. Secured tothe central portion of the forward sideofv abut-Y ment plate 127 andprojecting into the opening 10, is a cam 13. This cam has a fiat rearportion abutting the plate 12 and is provided with two arms. forming asleeve- Y like structure which projects into the opening 10. The saidarms have forward edges forming cam surfaces and these edges aregenerally curved diagonally outwardly from Y the Vplate 12, andareprovided with a plurality ofsubstantially straight portions 13a formingsteps inthe cam surfaces and disposedinfa plane generally parallel tothe plane of the abutment plate 12. A stem 14 projects centrally throughthe abutment plate 12 'and cam 13, and is provided-adjacent its forwardend with a squaredV portion having a pin v-15 mounted thereon as bymeans ofa nut lvscrewed on to .the forward endV of ,the stem. ,A.closure plate V17 is mountedon the steml 14 at the rear side of theabutment plate'12, and the said yclosureV plate is formed in the shapeof a casing open at its forward slide, the edges of the casing beingadapted to strike the abutment plate .'12 adjacent the central side ofthe roll 12ak therein. the 'stemy 14 and reacts between theabut- Acoiled'spring 18veXtends around ment plate `12 and the forward side ofthe closure plate. Rearwardly from the closure plate,v a handle 19 isformed or secured to the stem 14.' YIn the drawings, the handle 19 isillustrated as being in the shape of a wing nut. Adjacent its two ends,the' abut# nient plate l2 has small U-shaped holders 20 stampedrearwardly therefrom andL a bar spring*21,secured to the forward 'Isideof- 'closure plated?, has outery ends fitting through the U-shapedholders for. slidingmovement therethrough. In Fig".4 5,A a clo-` sureplate 22 is illustrated, which is provided with `a forward recessedportion 22'#l on its rear side within `which the handle l19 on 'stem 14may lit, so that the handle will not f project for any-substantialAVVdistance j rearwardly .fromK-the closure plate.

The two arms of spring 21 will placeV closure plate 17 underr tension tomove away from theV abutment plate.A This movement l i will be limitedby engagement of thepin 15 agon'ally vcurved.portions of to per1nit'thcsprings 21 and 1S to torce the on the cam surfaces of the cam 13. 7Whenthe key Vformed* by the` handle 19,. stem 14 and pin -is turned to itsextreme Clockwise position, as viewed in the drawings, the handle 1S)bearing against the rear sideof the closure plate, will torce rthe sameagainst" the tension of spring 2l` and spring 18so.

1' l. l. f", platF strihe between the nngs 9,

ln this` posi- S later will be heldf securely in closed position.

lWien noiv it is desired't open the ventilatortlie handle'l?) j ilibeclockwise position, thereby permitting the pin 15 slide down one orkmore ofthe dithe cam surfaces closure plate 17 rearwardly from. theabutment plate, hereby permitting air to pass tromthe Aopenings V9. andbetween the closure 'and the abutment plates;

number oi' stepsV ltformed' onlthe care-surf faces-of the cam 13,..itvll be apparent that ils therer` are a various' adjustments of thevclosureI plate relativeto theabutmentplate.can be made,` vso as to varytheamount of: air'admitted trom between: the closure and abutment Thetwo'l armso the` bar spring 21,

plates. will hold both ends oi' the closure plate under approximatelythe same tension, soi that all' points on the edges oi' the closure'plate will be spaced practically-"the same distance ronithe abutmentplate. rihe spring 18 will also af ist in maintaining evcn1spacingbet-Ween the edges of the closure plate and the abutment plate. lvl-.7rent-he closure plate is moved from a closed position, such as isillustrated in ull'- lines Fig. 3, to' an open position, such as isillustrated in dotted lines Fig. 3, the outer ends ofthe spring 21 will,ot' course, slide Within the' lil-shaped holders 2O on the abut-mentplate. The screening 11 will prevent the admission of insects and otsoot and dirt romithe outside. yl/Vheirtlie closure-plate isclesed, the

roll 12"' Wi ll proj ect rearwardly slightly from tlieedges ot' theclosure plate to shut oli" anyy possible draft-between the twoplatesandlthe roll will also permit the abutment plate to' besprung-slightly', due tothe action ofthe cam= 13, thereby forming an airtight joint between the closureand abutment plates.

In the form of the device illustrated' in:

Fig. 5, the handle 19 may beheld Within-the recess 22E on the 'rear sideof the closure plate 22 and, accordingly, the handle 19 Will passage or"air, admit-- :ed'in full linesl 13, there Will` urncd in counter not bestruck to injure the same, or to bend the stein 1d when av number ofWindow sashes, such as storm'sashes having the ventilators appliedtaereto, are stacked one against another.

rThe devicehasbeen amply demonstrated in actual practice and provides avery sim- `ple, adjustable xl'entilator, which can be quickly.madeandreadily i. tailed. lt vill, ot course, be understood that variouschanges may be made-in the orrmdetails, arrangement and' proportions ofthe device without departing from: the scope of the present invention; y

TWhat is claimed is:

1. A WindowA ventilator, comprising a plate adapted to iit over anopening inV a Window' sash, resilient m ans urging said plateaaway:trom` thesash, a liey projecting throughsaid plateand havingl a headabutting the outer side thereof, and av earn against Whichportions ofsaid lrey must a" \el as it is turned, to torce said plate mainstsaidisasliasthe lrey is turned in one direction and to permit saidresilient means to force said plate awayv romthe sash as the key is.turned ini n n-.opposite direction.-

2; They structure deiinedi in claimi 1,.V said camv hav-ing a plurality`of steps formed therein, for releasably engaging saidlrey to hold saidplate inany one'of a plurality of adjusted positions relativertosaidsa-sh.

3. A' Window ventilator, comprising. a plate adapted tof tover an;opening. in a Window sash,.resilient means acting atoppo site'sides ofsaid plate between the plate and 'theivindoiv sash and urging. saidplate away from the sash, a key projecting through said plate and havinga head abutting the outer side thereof and4 ai cam mountedy in saidWindow saslrand having portions thereon for determining the movement ofsaidilrey to and from said sash asthe lrey is turned, whereby as thefleyis turnedin one-direction, said y.plate Will be forced towardsaidvvindovs` sashand when the key is turned in an 0pposite directiongsaidaplate will be forced away from said sash by'means of said resilientmeans.

Ll. Ac Window Ventilator comprising, an

abutment platehav-ingv a plurality of apertures therethrough-,a sleeveshaped cam secured'to the foravardside of said abutment plate, akey-mounted in'saidabutment plate and: carrying a pin adapted tovbearagainst said: cam, a; closurey plate mounted on said lrey, said lreyhavinga-portion. abutting'the rear side-of said closure plate,andresilient means acting between said abutment plate andsaid closureplate to urge saidabutment plate rearwardly from said-closure plate,said cam being adapted to act to pull said closure plate towards saidabutment plate as said lrey is-turned'in one direction.

5. The combination with a Window sash lll) having, a plurality ofapertures therethrough,`

of a window Ventilator comprising, an abutment plate mounted on saidsash and having apertures therethroughcoincident with theaperturesthrough said sash, a cam sleeve secured to the rear side ofsaid abutment plate and proj eatingl into said sash, a Closure platemounted at the rear side of said abutment plate, springs acting betweensaid abutment plate and said closure plate adjacent the ends thereof tourge said Closure plate rearwardly rfrom said abutment plate, a stemprojecting through said plates and said sleeve and having a headabutting the rear side of said Closure platej and a pin mounted on theforward end of said stem and adapted to bear against the cam portions ofsaid sleeve, whereby as said pin is turned in one direction, said camsleeve willr engage said pin toV torce said stem Vand closure platetowards said abutment plate and when said stem is turned 1n the otherdirection, said springs will force said closure plate rearwardly fromsaid abutment plate.

6. The structure defined in claim 5, said closure plate having a centralportion projecting rearwardly from the rear side thereof, andv withinwhichv the head of said stem .will be mounted.v f

7. The structurev defined in Claim 5,',Said abutment plate having a'rolled edge immeagainst which the edges of said Closure plate areadapted to strike.

8. The structure delined inelaim 5, said sleeve having a pair of armsforming camv portions with a plurality of steps thereon,

relative to said abutmentplate.

ln testimony whereof I aiiix my signature.

SAMUEL A, KINKEL;

vdiately outwardly from, the point thereon Y

